scholarly journals Reviews and syntheses: Methane biogeochemistry in Sundarbans mangrove ecosystem, NE coast of India; a box modeling approach

2016 ◽  
Author(s):  
Manab Kumar Dutta ◽  
Sandip Kumar Mukhopadhyay
Keyword(s):  
Oxidation Rate ◽  
Mangrove Forest ◽  
Biosphere Reserve ◽  
Mangrove Ecosystem ◽  
Mangrove Sediment ◽  
Intertidal Sediment ◽  
Removal Mechanism ◽  
Ch4 Oxidation ◽  
Bottom Waters ◽  
Sundarbans Mangrove

Abstract. Biogeochemical cycling of CH4 was studied in Sundarbans mangrove system during June 2010 to December 2012. The sediment was CH4 supersaturated with mean production potential of 3547 and 48.88 µmol m−3 d−1, respectively in case of intertidal (0–25 cm depth) and sub-tidal sediments (first 5 cm depth). This induces significant CH4 out-flux from sediment to estuary via advective and diffusive transports. Mean advective (from intertidal sediment) and diffusive (from sub-tidal sediment) CH4 fluxes were 159.52 μmol m−2 d−1 and 8.45 μmol m−2 d−1, respectively. Intertidal sediment CH4 emission rate was about 4 times higher than surface layer CH4 oxidation rate; indicating petite methanotrophic activity in mangrove sediment. Mean CH4 concentration in estuarine surface and bottom waters were 69.90 and 56.17 nM, respectively. CH4 oxidation in estuarine water column being 14 times higher than water–atmosphere exchange is considered as principal CH4 removal mechanism in this estuary. Mean CH4 mixing ratio over the mangrove forest atmosphere was 2.013 ppmv. The ecosystem acts a source of CH4 to the upper atmosphere having mean biosphere–atmosphere exchange flux of 0.086 mg m−2 d−1. Mean CH4 photo-oxidation rate in the mangrove forest atmosphere was 3.25 × 10-9 mg cm−3 d−1 and is considered as principal CH4 removal mechanism in the forest atmosphere. Finally, a box model presenting CH4 biogeochemistry in Sundarbans biosphere reserve has been drafted and was used to demonstrate CH4 budget in this ecosystem.

scholarly journals Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shourav Dutta ◽  
MOHAMMED KAMAL HOSSAIN
Keyword(s):  
Sustainable Management ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Shrimp Farming ◽  
Management Approach ◽  
Conservation Practices ◽  
Extensive Literature ◽  
Severe Damage ◽  
Forest Diversity ◽  
Sundarbans Mangrove

Abstract. Dutta S, Hossain MK. 2020. Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach. Asian J For 4: 65-75. The oldest mangrove forest of Indian sub-continent namely Chakaria Sundarbans (CS) is currently in a critical situation. Destructive anthropogenic and natural impacts coupled with shrimp farming and excessive grazing has caused severe damage to this oldest mangrove ecosystem. A study was carried out based on the extensive literature survey and tried to explore the overall situation and conservation practices for CS of Bangladesh. This paper analyzed, reviewed, and identified the impacts of natural and man-made effects on CS mangroves. Finally, we recommended the sustainable management approach (SMA) including policy and participation of the local people for bringing back this potential natural mangrove forest resource of CS along with rich forest diversity.

The Decadal Response of Vegetation in the Sundarbans Mangrove Forest to the Climate Variabilities: Observing from the Space

2021 ◽  
Author(s):  
Md Masud-Ul-Alam ◽  
Subrata Sarker ◽  
Md. Ashif Imam Khan ◽  
S. M. Mustafizur Rahman ◽  
Syed Shoeb Mahmud
Keyword(s):  
Mangrove Forest ◽  
Sundarbans Mangrove ◽  
The Sundarbans

Monitoring Mangrove Forest Changes from Multi-temporal Landsat Data in Can Gio Biosphere Reserve, Vietnam

Wetlands ◽  
2016 ◽  
Vol 36 (3) ◽  
pp. 565-576 ◽  
Author(s):  
Nguyen Thanh Son ◽  
Bui Xuan Thanh ◽  
Chau Thi Da
Keyword(s):  
Mangrove Forest ◽  
Biosphere Reserve ◽  
Landsat Data ◽  
Multi Temporal

scholarly journals ISOLASI DAN PENENTUAN INDEKSHIDROLISIS BAKTERI AMILOLITIK DARI TANAH SEDIMENT MANGROVE DI WONOREJO, SURABAYA

2019 ◽  
Vol 10 (1) ◽  
pp. 38
Author(s):  
Aliyah Siti Sundari ◽  
Ni Nyoman Purwani ◽  
Anita Kurniati
Keyword(s):  
Soil Bacteria ◽  
Mangrove Ecosystem ◽  
Soil Characteristics ◽  
Mangrove Sediment ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Lugol’S Iodine ◽  
Gram Staining ◽  
Special Soil

Mangrove sediment is a habitat for various bacteria, one of them is amylolytic bacteria which has the potential to produce amylase enzyme. Amylase enzyme has many benefits in industry, textiles and medical. The mangrove ecosystem area has special soil characteristics, which have the opportunity to have microorganism diversity, one of which is the mangrove ecosystem in the Wonorejo region, Surabaya. This study aims to obtain potential amylolytic bacteria from potential amylolytic isolates derived from mangrove sediment. Soil bacteria were isolated in Starch media for 2% agar and tested with Lugol’s Iodine reagents to measure their amylolytic index. Character isolates observed included colony morphology, Gram staining, and motility. Of the 27 isolates found there were 3 isolates with the highest index values in their activity, namely isolates A.7, A.27 and A.64. Characterization results showed that isolates A.7 and A.64 were Gram negative bacteria, and isolates A.27 were Gram positive bacteria. And the motility results for the three isolates were negative, with the results of a positive catalase test.

scholarly journals Detection Of Community Knowledge Level Of Economic, Ecological Benefits And Causes Of Damage To Mangrove Forest Ecosystems

2021 ◽  
Vol 748 (1) ◽  
pp. 012017
Author(s):  
E Wahyuni ◽  
Zulhafandi ◽  
Hendris ◽  
Jarin
Keyword(s):  
Mangrove Forest ◽  
Forest Ecosystems ◽  
Mangrove Ecosystem ◽  
Economic Benefits ◽  
Household Waste ◽  
Mangrove Forests ◽  
Scoring Method ◽  
Ecological Benefits ◽  
Community Knowledge ◽  
Breeding Sites

Abstract Mangrove forests are natural resources in coastal areas that have an important role in terms of social, economic and ecological aspects. However, the utilization of the mangrove ecosystem makes it vulnerable to damage. This study aims to determine the level of public knowledge of the economic, ecological benefits and damage that happened to mangrove areas in Tarakan City. The scoring method was used to determine the total score or the total score of the respondents’ answers, which amount to 50 people. that the community’s knowledge of the economic benefits of mangrove forests was categorized as know for the benefits of mangroves as firewood, mangrove areas as a place for settlement, mangroves as a place to get fish and mangrove benefits as aquaculture areas with total scores of 226, 200, 232,230 respectively. However, the level of community knowledge about the benefits of mangroves as a medicinal ingredient obtained a total score of 164, which means the level of community knowledge was in the doubtful category. While the level of community knowledge of the ecological benefits of mangrove forests as coastline guards, sea wave barriers, sea wind protectors, and animal breeding sites were included in the category of “Know” with a total score of 228, 224, 234, 240 respectively, but the level of knowledge The community regarding the benefits of mangroves that can manage household waste was in the “doubtful” category with a total score of 128. The community was aware of the damage to mangrove forest ecosystems caused by garbage, logging / mangroves, expanding aquaculture, settlements and increasing population. with a total score of 234,232, 210,228 and 200 levels of knowledge, respectively, which are included in the “Know” category.

scholarly journals Society’s Participation Model For Mangrove Rehabilitation in Cempa District, Pinrang Regency

2019 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Nurul Azmi
Keyword(s):  
Mangrove Forest ◽  
Sampling Technique ◽  
Mangrove Ecosystem ◽  
Mangrove Forests ◽  
Planning Stage ◽  
Working Groups ◽  
Level Of Knowledge ◽  
Mangrove Rehabilitation ◽  
The Government ◽  
Forest Rehabilitation

This study aims to determine: 1) The level of society support in the rehabilitation of mangrove forests. 2) Model ofsociety participation in the rehabilitation of mangrove forests. The population in this study was 721 people, a sample was72 people. The sampling technique used is proportional random sampling. Data collection using observation techniques, interviews, and questionnaires. Data analysis using descriptive interpretative. The results showed that the level of knowledge and society support about mangrove forest rehabilitation is good enough. The model of society  participation is that they are directly involved in the rehabilitation of mangrove forest starting from the planning stage, which is to provide aspirations in the form of concepts, ideas. Designing the concept to be implemented. Planting, they participates in the provision of seeds and planting. Establish working groups led by community leaders or chairmen of working groups. Maintenance, participate in mangrove csssare from the re-planting of mangroves that diaman dead and eradicate the pests that attack the mangrove seeds, and finally the Supervision, in this stage  they forbid anyone to remove, cut the mangrove that has been planted. The government also participates in the supervision and make the rule of giving sanctions to those who deliberately destroy the mangrove ecosystem.

scholarly journals KONDISI WISATA MANGROVE DI DESA PASAR BANGGI, KABUPATEN REMBANG Mangrove Tourism Conditions in Pasar Banggi Village, Rembang Regency

2019 ◽  
Vol 8 (3) ◽  
pp. 221-225
Author(s):  
Danang Adi Saputro ◽  
Frida Purwanti ◽  
Siti Rudiyanti
Keyword(s):  
Species Composition ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Google Earth ◽  
Survey Method ◽  
Systematic Sampling ◽  
Sampling Techniques ◽  
Mangrove Species ◽  
Sampling Points ◽  
Exploratory Survey

ABSTRAK Mangrove merupakan tumbuhan yang hidup di daerah pasang surut sebagai ekosistem interface antara daratan dengan lautan. Ekosistem mangrove di desa Pasar Banggi Kabupaten Rembang merupakan perpaduan antara mangrove alami dan hasil rehabilitasi. Tujuan penelitian ini untuk mengetahui kondisi mangrove di Desa Pasar Banggi, Rembang dilihat dari  komposisi jenis, kerapatan dan ketebalan mangrove serta menganalisis tingkat kesesuaian wisata mangrove di Desa Pasar Banggi, Rembang. Metode yang digunakan adalah metode survey lapangan yang bersifat eksploratif, dimana  teknis pengumpulan data menggunakan sistematik sampling. Data yang diambil meliputi 5 variabel yaitu: jenis, kerapatan mangrove dan asosiasi biota (hasil pengamatan lapangan dan perbandingan dari penelitian terdahulu), ketebalan (citra Google Earth Oktober 2016), pasang surut (data BMKG Oktober 2016). Pengambilan sampel dilakukan pada 3 stasiun, dimana setiap stasiun terdapat 3 titik sampling. Komposisi jenis mangrove di desa Pasar Banggi terdapat 3 jenis mangrove yaitu Rhizopora stylosa, R. mucronata, dan R. Apiculata, dengan kerapatan mangrove tertinggi yaitu 62 ind/100m2 dan ketebalan mangrove tertinggi sepanjang 139 m. Kondisi hutan mangrove desa Pasar Banggi termasuk dalam kategori sesuai (S2) untuk kegiatan wisata berkelanjutan di Kabupaten Rembang. ABSTRACT Mangroves are plants that grow in a tidal areas an interface ecosystems between terrestrial and marine. Mangrove ecosystem in the Pasar Banggi Village,  Rembang Regency is a combination results of natural mangrove and rehabilitation. The purpose of this study were to determine condition of mangroves in the Pasar Banggi Village, Rembang, seen from the species composition, density and thickness of mangroves and to analyze the suitability level of mangrove tourism in the Pasar Banggi Village, Rembang. The method used in this study was an exploratory survey method, data collected using systematic sampling techniques. Mangrove tourism data collection was carried out of 5 variables, i.e.: type of mangrove, density of mangroves and associations of biota (from observations and comparisons of previous studies), thickness (Google Earth image October 2016), tides (data BMKG October 2016). Sampling was conducted at 3 stations, each station has 3 sampling points. The composition of mangrove species in Pasar Banggi village consists of 3 types of mangroves, namely Rhizopora stylosa, R. mucronata, and R. Apiculata, with the highest density of mangrove 62 ind / 100m2 and the highest thickness of mangrove along 139 m. The condition of mangrove forest in the Pasar Banggi village was included in the appropriate category (S2) for sustainable tourism activities in the Rembang Regency.

INNOVATIVE MANAGEMENT OF NATURAL RESOURCES: CASE STUDY OF MANGROVE AREA IN KUALA GULA, PERAK

2017 ◽  
Vol 15 ◽  
Author(s):  
Salina Nor Azam ◽  
Tanot Unjah
Keyword(s):  
Natural Resources ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Forest Reserve ◽  
Mangrove Area ◽  
Innovative Management ◽  
The Innovative Management ◽  
The Government ◽  
Management Approaches

This paper attempts to identify and explicate sustainability approach through innovative management of natural resources that is able to create balance between conservation and utilization of natural resources. Innovative management of natural resources is related to the act of bringing changes or an introduction to a novelty idea for achieving organisational goal which involves organising people, finances and resources, training, controlling, monitoring, and sanctioning. The study focuses on the mangrove ecosystem, one of the most sensitive natural resources in the country, which has been successfully managed by the government through top down approach. Data was gathered through content analysis and interviews with several key persons from the study area. This paper firstly compares the different management approaches in Matang Mangrove Forest Reserve and Kuala Gula Mangrove, before finally elaborating on the innovative management of the latter.

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